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LA55-P/SP1 The LEM LA55-P/SP1 is a current sensor designed for electronic current conversion. It offers a nominal input current of 50A and a conversion range up to ±100A.
Mfr Part #:

LA55-P/SP1

Available from 5 distributors
Mfr Name: LEM USA Inc.
LEM USA Inc.
The LEM LA55-P/SP1 is a current sensor designed for electronic current conversion. It offers a nominal input current of 50A and a conversion range up to ±100A.
✓ Total Stock: 38,813 pcs
$ Price Range: $0.99

LA55-P/SP1 Available from 5 distributors

✓ Authorised
✓ Non-Authorised
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

LA55-P/SP1 Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Approval Agency
Delay Time
Frequency Range
Operating Temperature
Quiescent Current
Slew Rate
Storage Temperature
Supply Voltage
Weight
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LA55-P/SP1 Description

Short technical summary and product information.

The LEM LA55-P/SP1 is a Hall effect current sensor that electronically converts DC, AC, and pulsed currents into a proportional output current. It provides galvanic isolation between the primary (power) and secondary (measurement) circuits.

 

Key electrical parameters include a nominal input current of 50A, a conversion range of 0 to ±100A, and a nominal analog output current of 25mA. The device operates with a supply voltage of ±12V to ±15V. It boasts excellent accuracy, with conversion accuracy at ±0.65% at 25°C with a ±15V supply. Nonlinearity is less than 0.15%.

 

Dynamic characteristics are also notable, featuring a delay time of less than 1µs and a high slew rate of over 200 A/µs. The frequency range extends from DC to 200 kHz (-1dB).

 

This sensor is suitable for various applications including variable frequency AC drives, DC motor drives, battery management systems, and uninterruptible power supplies. It features an insulating, non-flammable plastic housing.

LA55-P/SP1 Quick Information

Product Type: Current Sensor
Canonical Name: LEM LA55-P/SP1 Current Sensor
Subcategory: JFETs

LA55-P/SP1 Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

LA55-P/SP1 Estimated Pricing

Qty Low High
1+ $0.99 $0.99

Estimated market price range - modelled values for guidance only, not live distributor offers.

LA55-P/SP1 Features

  • Hall effect based current sensor.
  • Galvanic isolation between circuits.
  • 50A nominal input current.
  • ±100A maximum conversion range.
  • Fast response time under 1µs.

LA55-P/SP1 Applications

  • Variable frequency AC drives.
  • DC motor drive converters.
  • Battery management systems.
  • Uninterruptible power supplies.
  • Welding power supplies.

LA55-P/SP1 FAQs

7 frequently asked questions generated from this part’s specifications.
What is the nominal input current for the LA55-P/SP1?

The nominal input current is 50 A.

What is the conversion range of the LA55-P/SP1 current sensor?

The conversion range is 0 to ± 100 A.

What is the nominal analog output current?

The nominal analog output current is 25 mA.

What is the supply voltage range for this current sensor?

The supply voltage is ± 12 to 15 V.

What is the conversion accuracy at 25°C with a ±15V supply?

The conversion accuracy is ± 0.65 %.

What is the operating temperature range?

The operating temperature range is -25°C to +85°C.

What is the delay time for the LA55-P/SP1?

The delay time is less than 1 µs.

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